The Add-on installs all of the released formulas made by Top Contributors. The formulas themselves use only but JavaScript to perform their magic in presenting the result and no service is evoked (like the SpreadsheetApp) during operation which, in many cases, leads to a shorter processing time. Read our Privacy policy to know more about that.

Bear in mind that Custom Formulas aren't meant to process huge amounts of data. It is therefore highly advisable to use a direct reference (A2:B69) over an open ended reference (A:B).

Link to Add-on in the store: